Hematopoeisis is adversely affected, most notably in itai-itai disease where severe anemia is observed, in association with marked suppression of erythropoietin production . Hemolysis may also be a factor in producing Cd-associated anemia, which may produce iron-deficient indices despite increased body Fe stores resulting from hemolysis and increased duodenal Fe absorption .
Welding apprentices learn the full range of manual, semiautomatic and automatic welding processes in the shipyard's welding school. They use a wide range of metals and welding processes to perform structural and pipe welds in all phases of ship construction.
Apprenticeship programs are sponsored by joint employer and labor groups, individual employers, and/or employer associations. The sponsor of an apprenticeship program plans, administers, and pays for the program. It is clearly identified and commonly recognized throughout an industry. 2  It involves manual, mechanical, or technical skills and knowledge that require a minimum of 2000 hours of on-the-job experience. 3  It requires related instructions to supplement the on-the-job training.